Calibration Standard Mix 2 Back Catalog number: 53044 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0485.16-200-T Benzo[b]naphtho[2,1-d]thiophene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 239-35-0 Price on request 684226 N-Nitrosopiperidine, 100µg/ml in MeOH, 5ml Price on request 20291 Chlorothalonil Metabolite R417888-13C2,15N2 sodium salt, 2,5mg Price on request